perf: precompress heavy assets and self-heal missing gamedata originals (gzip_static)

update-Nitrov3.sh

@@ -2000,6 +2000,7 @@ update_client() {
     fi
     mkdir -p "$NITRO_CLIENT/dist/custom-themes"
     [ ! -f "$NITRO_CLIENT/dist/custom-themes/index.json" ] && echo '{"themes":[]}' > "$NITRO_CLIENT/dist/custom-themes/index.json"
+    precompress_assets
     fix_perms
     return 0
 }
@@ -3507,6 +3508,24 @@ http_status() {
     if [ -n "$code" ]; then echo "$code"; else echo 000; fi
 }
 
+# Re-generate .gz sidecars for the heavy static assets so nginx `gzip_static`
+# serves them instantly (no per-request compression). Also restores any loose
+# original that was left behind as only the .gz sidecar — a state that would
+# otherwise make the origin 404 on those files.
+precompress_assets() {
+    local root f base
+    for root in "$(dirname "${GAMEDATA_CONF_DIR:-/var/www/Gamedata/config}")" "${NITRO_CLIENT:-/var/www/Octane}/dist"; do
+        [ -d "$root" ] || continue
+        while IFS= read -r f; do
+            base="${f%.gz}"
+            [ -f "$base" ] || { gunzip -k "$f" && warn "Restored missing original: %s" "$base"; }
+        done < <(find "$root" -name "*.gz" -type f 2>/dev/null)
+        find "$root" -type f \( -name "*.js" -o -name "*.css" -o -name "*.wasm" -o -name "*.json" -o -name "*.jsonc" \) -size +20k -print0 2>/dev/null \
+            | while IFS= read -r -d '' f; do gzip -k -f -6 "$f"; done
+    done
+    ok "$(_t "Assets compressed for fast serving")"
+}
+
 # TCP reachability probe for the websocket endpoint (curl cannot talk `wss://`).
 check_socket() {
     local url="$1" hostport host port
@@ -3616,6 +3635,7 @@ cmd_fixlinks() {
     fi
     command -v redis-cli &>/dev/null && redis-cli FLUSHALL 2>/dev/null && ok "Redis flushed" || true
     fix_perms
+    precompress_assets
     info "$(_t "Done — links fixed. Test the client now.")"
     release_lock
     return 0